1. The Main_data folder includes all the experimental data, calculation codes and analysis codes shown in the main text. The SM_data folder includes all the data shown in the supplementary materials.
2. The spectrum data in a specific folder combine to form a single spectrum picture. Each dat file represents the current spectrum of a specific BG voltage.
3. All the 2d current mapping data are stored as txt files.
4. Analysis codes are stored in .m files.
5. Band structure of figs3 is calculated with "plot.py", stored in "out", and plotted in "Panel_o.png".